Abstract

The annoyance caused by music intruding into a room from a neighboring dwelling was studied under laboratory conditions. The annoyance caused by intruding music was measured for electronic simulations of different insulation curves that provided the same transmission loss when measured as an A‐weighted attenuation according to French regulation. The A‐weighted ratings of the transmission loss provided by the insulation curves poorly predicted the subjective assessments. Likewise, the ISO and ASTM recommended sound transmission loss rating methods also poorly predicted the annoyance reactions. The subjects showed a preference for insulation curves that had the steepest slopes (12 dB/octave), but the presence or location of coincidence dips did not systematically influence the annoyance ratings. Although the music samples were all played at the same A‐weighted level, the A‐weighted level of the music transmitted through the insulation curves accounted for about 14% of the variability. in the annoyance ratings and including measurements of the ambient room noise accounted for another 15% of the variability.

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